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Geography Optional 300+ Score Pack · Model answer

How does natural vegetation affect the formation of in situ soils?

  • UPSC 2015
  • Physical Setting

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In situ or residual soils form where they lie, directly from the weathering of the underlying parent rock, without transport — the opposite of the alluvial soils of the northern plains.

You are reading the opening of the model answer. The full answer is part of the Geography Optional 300+ Score Pack.

What the full answer covers

  • The Mechanisms
  • Addition of organic matter
  • Biochemical weathering
  • Nutrient pumping and cycling
  • Regulation of the moisture and thermal regime
  • Vegetation Type Determines Soil Type
  • …and 1 more sections, with a conclusion
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